Answer:
Factoring: [tex]x = -\frac{1}{5}, -3[/tex]
Step-by-step explanation:
A) You can factor the expression [tex]5x^2 + 16x + 3[/tex] into [tex](5x+1)(x+3)[/tex].
5x + 1 = 0 and x + 3 = 0
[tex]x = -\frac{1}{5}, -3[/tex]
B) I would use factoring because you can factor this expression, and you don't have to use completing the square